var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var config = require('./config');

// var routes = require('./routes/index');

var app = express();

global.PARAMS_ERROR_CODE = '100007';
global.PARAMS_ERROR_MESSAGE = '参数错误';
global.ENV = app.get('env');                  // 运行环境
global.__utils = require('./utils');

app.locals.__pageTitle = config.app.name;
app.locals.__pageKeywords = config.app.keywords;
app.locals.__pageDescription = config.app.description;
app.locals.__urlBase = config[ENV].urlBase;
app.locals.__resBase = config[ENV].urlBase;
app.locals.__imgBase = config[ENV].imgBase;
app.locals.__apiBase = config[ENV].apiBase;
app.locals.__cssFiles = [];
app.locals.__jsFiles = [];


// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());

app.use(express.static(path.join(__dirname, '../client/dist')));
app.use(express.static(path.join(__dirname, '../client/src')));
app.use(express.static(path.join(__dirname, 'public')));

app.use('/demo', require('./modules/demo/router'));
app.use('/login', require('./modules/login/router'));

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
  app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
      message: err.message,
      error: err
    });
  });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
  res.status(err.status || 500);
  res.render('error', {
    message: err.message,
    error: {}
  });
});


module.exports = app;
